1. Explain the two processes that keep atmospheric oxygen and carbon dioxide at stable levels? 2. What do you think are two causes of the increase in carbon dioxide in the atmosphere?

i believe the answer is 5,000

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but